CN210049078U - Steel trestle navigation hole bridge floor hoisting device - Google Patents
Steel trestle navigation hole bridge floor hoisting device Download PDFInfo
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- CN210049078U CN210049078U CN201920366904.4U CN201920366904U CN210049078U CN 210049078 U CN210049078 U CN 210049078U CN 201920366904 U CN201920366904 U CN 201920366904U CN 210049078 U CN210049078 U CN 210049078U
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- bridge floor
- hoisting
- navigation hole
- navigation
- bridge deck
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Abstract
The utility model discloses a steel landing stage navigation hole bridge floor hoisting device, including navigation hole bridge floor for lay the bridge floor driving support system of navigation hole bridge floor, be used for the bridge floor hoist and mount system that lifts by crane navigation hole bridge floor, restriction navigation hole bridge floor lifts by crane the stop device of in-process horizontal displacement and vertical displacement. The utility model discloses steel landing stage navigation hole bridge floor hoisting device's simple structure, operation convenient to use, the steel landing stage navigation hole bridge floor that can accurate promotion and fix a position.
Description
Technical Field
The utility model belongs to the technical field of the bridge construction, concretely relates to steel landing stage navigation hole bridge face hoisting device.
Background
In the rapid development of modern bridge spanning rivers (rivers, seas and lakes), the steel trestle also becomes a main large temporary facility in the construction process of bridge engineering, and is a construction life line for guaranteeing the bridge engineering. As many rivers, lakes, inland seas and the like have navigation requirements, the steel trestle needs to be provided with navigation holes to ensure that a navigation channel is smooth.
The navigation hole generally adopts two modes of raising the elevation of the bridge deck of the navigation section or lifting the bridge deck of the navigation section. To the higher river reach of navigation headroom requirement, through the navigation hole of raising navigation section bridge floor elevation facility, can great increase engineering cost. Meanwhile, two longitudinal slopes in front of and behind the navigation hole are large, and the potential safety hazard of driving in rainy days is large.
The existing navigation hole lifting device generally adopts finish rolling screw-thread steel and a jack to lift, and the efficiency is lower. Meanwhile, in the operation process, the lifting height is generally visually observed, and the lifting height or the descending height of the bridge deck is difficult to accurately control. In order to ensure the economical efficiency and the safety of the steel trestle navigation hole. The invention provides a steel trestle navigation hole bridge floor lifting method capable of accurately controlling the lifting or descending position of the bridge floor.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a steel landing stage navigation hole bridge face hoisting device, its simple structure, operation convenient to use can accurately promote the steel landing stage navigation hole bridge floor with the location.
The utility model discloses a following technical scheme realizes.
A steel trestle navigation hole bridge floor lifting device comprises a navigation hole bridge floor and a bridge floor travelling crane supporting system used for placing the navigation hole bridge floor, and is characterized by also comprising a bridge floor hoisting system used for hoisting the navigation hole bridge floor and a limiting device used for limiting horizontal displacement and vertical displacement in the hoisting process of the navigation hole bridge floor;
the navigation hole bridge deck comprises a bridge deck, lifting beams arranged at two ends below the bridge deck and navigation hole bridge deck rollers arranged at two ends of the lifting beams;
the bridge deck travelling crane supporting system comprises bridge deck travelling crane supporting piles arranged at two ends of the navigation hole bridge deck, and travelling crane supporting beams which span the bridge deck and are erected between the top ends of the bridge deck travelling crane supporting piles and are used for placing the bridge deck;
the bridge deck hoisting system comprises hoisting support piles arranged at two ends of the bridge deck of the navigation hole, hoisting support cross beams crossing the bridge deck and erected at the top ends of the hoisting support piles, a hoisting platform fixed on the hoisting support cross beams, a hoisting driving device arranged on the hoisting platform, a pulley block, a steel wire rope connected with the hoisting driving device and the pulley block, and a navigation hole bridge deck hook used for being connected with two ends of a hoisting beam; the pulley block comprises a movable pulley and a fixed pulley, and the hook on the bridge surface of the navigation hole is connected with the bottom end of the movable pulley;
the limiting device comprises a horizontal limiting device and a longitudinal limiting device; the horizontal limiting device comprises a track fixing cross beam arranged on the hoisting support pile, and a sliding track which is perpendicular to the bridge deck, fixed on the track fixing cross beam and used for the navigation hole bridge deck rollers to slide up and down; the longitudinal limiting device comprises an upper travel switch and a lower travel switch which are arranged on the track; the setting height of the lower travel switch meets the following requirements: when the bridge deck is placed on the crane supporting cross beam, the height of the lower travel switch is the same as that of the hoisting beam.
As the preferred technical scheme, guardrails are arranged around the hoisting platform.
As a preferred technical scheme, the hoisting platform comprises a transverse longitudinal beam and a pattern steel plate, wherein the two ends of the transverse longitudinal beam are connected with the hoisting support cross beam, and the pattern steel plate is laid on the transverse longitudinal beam.
As a preferred technical scheme, the track is a channel steel.
According to the preferable technical scheme, the hoisting driving device is four synchronous motor hoists, and the four hoists adopt the same electric switch so as to enable the four hoists to synchronously work or stop and ensure the stable hoisting of the deck of the navigation hole; the four sets of pulley blocks are respectively in one-to-one correspondence operation with the four winches.
As a preferred technical scheme, the movable pulley and the fixed pulley are both double pulleys.
Preferably, the contacts of the upper travel switch and the lower travel switch extend to the rail.
As the preferred technical scheme, the bridge deck crane supporting pile and the hoisting supporting pile adopt steel pipe piles.
As the preferred technical scheme, the hoisting beam, the travelling crane supporting beam and the hoisting supporting beam are made of 40A-type I-shaped steel; the transverse longitudinal beam is 25A type I steel.
The utility model has the advantages that:
1) the materials and mechanical equipment adopted by the utility model are common parts in the market, and the popularization is extremely strong;
2) the utility model has the advantages of convenient operation, safety and reliability, realizes the mechanization of the lifting process of the navigation hole, and has lower cost;
3) the utility model discloses a through stop device's setting, can guarantee the bridge floor in the accurate positioning who promotes or descend the in-process, and do not worry to promote or descend the in-process phenomenon of being out of control to appear, reduce the hidden danger of quality safety accident.
Drawings
Fig. 1 is a front view of the middle navigation hole bridge deck of the present invention when lifted;
fig. 2 is a left side view of the middle navigation hole bridge deck of the present invention when lifted;
FIG. 3 is a left side view of the middle navigable hole bridge deck of the present invention;
fig. 4 is a schematic perspective view of the middle manhole bridge deck of the present invention when lifted;
FIG. 5 is an enlarged schematic view at A in FIG. 2;
the meanings of the marks in the above figures are as follows: 1-a navigable aperture bridge deck, 11-a bridge deck, 12-a lifting beam, 13-a navigable aperture bridge deck roller, 2-a bridge deck travelling crane support system, 21-a bridge deck travelling crane support pile, 22-a travelling crane support beam, 3-a bridge deck lifting system, 31-a lifting support pile, 32-a lifting platform, 33-a lifting drive device, 34-a pulley block, 341-a movable pulley, 342-a fixed pulley, 35-a steel wire rope, 36-a navigable aperture bridge deck hook, 37-a lifting support beam, 4-a limiting device, 41-a horizontal limiting device, 411-a track fixed beam, 412-a sliding track, 42-a longitudinal limiting device, 421-an upper travel switch, 422-a lower travel switch.
Detailed Description
The present invention is further described in the following embodiments with reference to the attached drawings, and it should be noted that the following embodiments are only illustrative of the present invention by way of example, but the scope of the present invention is not limited thereto, and all those skilled in the art can substitute the equivalent of the present invention by the spirit of the present invention.
Examples
A steel trestle navigation hole bridge floor lifting device refers to fig. 1, fig. 2 and fig. 4, and comprises a navigation hole bridge floor 1, a bridge floor travelling crane supporting system 2 for placing the navigation hole bridge floor 1, a bridge floor hoisting system 3 for hoisting the navigation hole bridge floor 1, and a limiting device 4 for limiting horizontal displacement and vertical displacement in the hoisting process of the navigation hole bridge floor 1;
the navigation hole bridge deck 1 comprises a bridge deck 11, lifting beams 12 arranged at two ends below the bridge deck 11 and navigation hole bridge deck rollers 13 arranged at two ends of the lifting beams 12;
the bridge deck travelling crane supporting system 2 comprises bridge deck travelling crane supporting piles 21 arranged at two ends of the navigation hole bridge deck 1, and travelling crane supporting beams 22 which span the bridge deck and are erected between the top ends of the bridge deck travelling crane supporting piles 21 and used for placing the bridge deck 11;
the bridge deck hoisting system 3 comprises hoisting support piles 31 arranged at two ends of the navigation hole bridge deck 1, hoisting support beams 37 crossing the bridge deck and erected at the top ends of the hoisting support piles 31, hoisting platforms 32 fixed on the hoisting support beams 37, hoisting driving devices 33 arranged on the hoisting platforms 32, pulley blocks 34, steel wire ropes 35 connected with the hoisting driving devices 33 and the pulley blocks 34, and navigation hole bridge deck hooks 36 connected with two ends of the hoisting beams 12; the pulley block 34 comprises a movable pulley 341 and a fixed pulley 342, and the bridge deck hook 36 of the navigation hole is connected with the bottom end of the movable pulley 341;
the limiting device 4 comprises a horizontal limiting device 41 and a longitudinal limiting device 42; the horizontal limiting device 41 comprises a track fixing cross beam 411 arranged on the hoisting support pile 31, and a sliding track 412 which is perpendicular to the bridge deck, fixed on the track fixing cross beam 411 and used for sliding up and down through the navigation hole bridge deck roller 13; when the navigation hole bridge floor 1 is hoisted, the navigation hole bridge floor idler wheels 13 at two ends of the hoisting beam 12 roll along the sliding tracks 412 in the lifting or descending process, so that the navigation hole bridge floor 1 can be ensured not to deviate in the horizontal direction in the up-and-down movement process, and the navigation hole bridge floor 1 can be accurately placed on the travelling crane supporting beam 22; the longitudinal restraint 42 includes an upper travel switch 421 and a lower travel switch 422 disposed on the rail 412; the setting height of the lower travel switch 422 satisfies: when the bridge deck 11 is placed on the crane support beams 22, the height of the lower travel switch 422 is the same as that of the lifting beam 12; the setting height of the upper travel switch 421 is consistent with the clearance height of the lifted bridge deck required by the design; when the navigation hole bridge floor 1 rises or falls to a certain height, the navigation hole bridge floor roller 13 sliding in the sliding track 412 touches the upper travel switch 421 or the lower travel switch 422, so that the hoisting driving device 33 stops working, and the navigation hole bridge floor 1 stops rising or falling continuously, so as to achieve accurate positioning of the navigation hole bridge floor 1;
in the structure, referring to fig. 1 and 4, when a ship needs to navigate, the hoisting driving device 33 is started to drive the steel wire rope 35 to move, the movable pulley 341 and the navigation hole bridge deck hook 36 are controlled to lift upwards, the navigation hole bridge deck hook 36 is connected with a hoisting point arranged on the hoisting beam 12 below the bridge deck 11, so that the navigation hole bridge deck 1 can be hoisted, and the navigation hole bridge deck roller 13 slides upwards along the sliding track 412 to stably lift the navigation hole bridge deck 1, when the navigation hole bridge deck 1 is lifted to a certain height, the navigation hole bridge deck roller 13 touches the upper travel switch 421 to stop the hoisting driving device 33, so that a navigation hole for allowing the ship to pass through is formed below the navigation hole bridge deck 1;
after the ship passes through, please refer to fig. 2 and fig. 4, the hoisting driving device 33 is started to drive the steel wire rope 35 to move, the movable pulley 341 and the navigation hole bridge deck hook 36 are controlled to be slowly lowered, the navigation hole bridge deck hook 36 is connected with a hoisting point arranged on the hoisting beam 12 below the bridge deck 11, so that the navigation hole bridge deck 1 can be controlled to descend, and the navigation hole bridge deck roller 13 slides downwards along the sliding track 412 to stably descend the navigation hole bridge deck 1, after the navigation hole bridge deck 1 descends to a certain height, the navigation hole bridge deck roller 13 touches the lower stroke switch 422, so that the hoisting driving device 33 stops working, and the navigation hole bridge deck 1 is just placed on the driving supporting beam 22 of the bridge deck driving supporting system 2, so that the vehicle can continue to pass through the steel trestle.
Further, referring to fig. 1 and 4, in the embodiment, in order to facilitate the maintenance and ensure the safety of the high-altitude operators, the lifting platform 32 is provided with guard rails 38 around the lifting platform.
Further, referring to fig. 1 and 2, in this embodiment, the lifting platform 32 includes a horizontal beam 321 whose two ends are connected to the hoisting support beams 37, and a patterned steel plate 322 laid on the horizontal beam 321.
Further, in this embodiment, in order to obtain materials and save engineering cost, the sliding rail 412 is a channel steel.
Further, in this embodiment, in order to make the lifting of the bridge deck more stable, the hoisting driving device 33 is four synchronous motor hoists, and the four hoists use the same electric switch, so that the four hoists can synchronously work or stop, and the stable hoisting of the bridge deck 1 of the navigation hole is ensured; the pulley blocks 34 are four sets and respectively correspond to the four winches to work one by one.
Further, in this embodiment, a double pulley is used for both the movable pulley 341 and the fixed pulley 342.
Further, referring to fig. 5, in this embodiment, the contacts of the upper travel switch 421 and the lower travel switch 422 both extend to the track, so as to facilitate the contact between the deck roller 13 and the contacts in the navigation hole during the lifting process of the deck, control the travel switches to be turned off, and stop the lifting of the deck.
Further, in this embodiment, the bridge deck crane support piles 21 and the hoisting support piles 31 are steel pipe piles.
Further, in this embodiment, the hoisting beam 12, the crane supporting beam 22, and the hoisting supporting beam 37 are made of 40A type i steel; the transverse girder 321 is 25A type i steel.
Claims (9)
1. A steel trestle navigation hole bridge floor lifting device comprises a navigation hole bridge floor (1) and a bridge floor travelling crane supporting system (2) used for placing the navigation hole bridge floor (1), and is characterized by also comprising a bridge floor hoisting system (3) used for hoisting the navigation hole bridge floor (1) and a limiting device (4) used for limiting horizontal displacement and vertical displacement in the hoisting process of the navigation hole bridge floor (1);
the navigation hole bridge floor (1) comprises a bridge floor (11), lifting beams (12) arranged at two ends below the bridge floor (11), and navigation hole bridge floor rollers (13) arranged at two ends of the lifting beams (12);
the bridge deck travelling crane supporting system (2) comprises bridge deck travelling crane supporting piles (21) arranged at two ends of the navigation hole bridge deck (1), and travelling crane supporting beams (22) which span the bridge deck and are erected between the top ends of the bridge deck travelling crane supporting piles (21) and used for placing the bridge deck (11);
the bridge deck hoisting system (3) comprises hoisting support piles (31) arranged at two ends of the navigable hole bridge deck (1), hoisting support crossbeams (37) crossing the bridge deck and erected at the top ends of the hoisting support piles (31), hoisting platforms (32) fixed on the hoisting support crossbeams (37), hoisting driving devices (33) arranged on the hoisting platforms (32), pulley blocks (34), steel wire ropes (35) connected with the hoisting driving devices (33) and the pulley blocks (34), and navigable hole bridge deck hooks (36) used for being connected with two ends of the hoisting beams (12); the pulley block (34) comprises a movable pulley (341) and a fixed pulley (342), and the bridge deck hook (36) of the navigation hole is connected with the bottom end of the movable pulley (341);
the limiting device (4) comprises a horizontal limiting device (41) and a longitudinal limiting device (42); the horizontal limiting device (41) comprises a track fixing cross beam (411) arranged on the hoisting support pile (31), and a sliding track (412) which is perpendicular to the bridge floor, fixed on the track fixing cross beam (411) and used for sliding up and down of a navigation hole bridge floor roller (13); the longitudinal limiting device (42) comprises an upper travel switch (421) and a lower travel switch (422) which are arranged on the track (412); the setting height of the lower travel switch (422) meets the following requirements: when the bridge deck (11) is placed on the crane supporting beam (22), the height of the lower travel switch (422) is the same as that of the lifting beam (12).
2. The steel trestle navigation hole bridge floor lifting device of claim 1, characterized in that guard rails (38) are arranged around the lifting platform (32).
3. The steel trestle navigation hole bridge floor lifting device of claim 1, characterized in that the lifting platform (32) comprises a transverse longitudinal beam (321) with two ends connected with the hoisting support cross beam (37), and a pattern steel plate (322) laid on the transverse longitudinal beam (321).
4. A steel trestle navigation hole deck lift device according to claim 1, characterised in that said sliding track (412) is a channel.
5. The steel trestle navigation hole bridge floor lifting device of claim 1, characterized in that the lifting driving device (33) is four synchronous motor hoists, and the four hoists use the same electric switch to enable the four hoists to synchronously work or stop, so as to ensure the stable lifting of the navigation hole bridge floor (1); the four sets of pulley blocks (34) are respectively in one-to-one correspondence operation with the four winches.
6. The steel trestle navigation hole bridge floor lifting device of claim 1, characterized in that the movable pulley (341) and the fixed pulley (342) are double pulleys.
7. A steel trestle navigation hole bridge floor lifting device according to claim 1, characterized in that the contacts of both the upper travel switch (421) and the lower travel switch (422) extend to the sliding track (412).
8. The steel trestle navigation hole bridge floor lifting device of claim 1, wherein the bridge floor crane support piles (21) and the hoisting support piles (31) are steel pipe piles.
9. The steel trestle navigation hole bridge floor lifting device of claim 3, characterized in that the lifting beam (12), the travelling crane supporting beam (22) and the hoisting supporting beam (37) are made of 40A type I steel; the transverse longitudinal beam (321) is 25A-type I-shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920366904.4U CN210049078U (en) | 2019-03-21 | 2019-03-21 | Steel trestle navigation hole bridge floor hoisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920366904.4U CN210049078U (en) | 2019-03-21 | 2019-03-21 | Steel trestle navigation hole bridge floor hoisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210049078U true CN210049078U (en) | 2020-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920366904.4U Active CN210049078U (en) | 2019-03-21 | 2019-03-21 | Steel trestle navigation hole bridge floor hoisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210049078U (en) |
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2019
- 2019-03-21 CN CN201920366904.4U patent/CN210049078U/en active Active
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